Chief David Parenti said that most of the concern centered on six of the campers at Griswold Scout Reservation, 87 miles north of Boston, because of the location of burns on their bodies, but that the injuries were not serious.

The storm was part of a system that swept through Massachusetts, as well, with reports of hail and lightning strikes.

A National Weather Service spokeswoman said that 1-inch hail was reported in Greenfield and Leverett, with ¾-inch hail in Danvers and Topsfield. Gusts of 50 miles per hour were also reported in parts of the state.

Two people sustained minor injuries when lightning hit an umbrella outside the Cask ’n Flagon restaurant in Marshfield, sending the umbrella through a window, said Shaun Robinson of the Marshfield Fire Department.